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Cosmology with massive gravitons and scalar fields
  OKC - Theory Working Group

Thursday 15 November 2018
from 13:15 to 14:00
at Nordita 132:028
Speaker : Michele Oliosi (Yukawa Institute for Theoretical Physics, University of Kyoto)
Abstract : In this talk, I will present two specific theories in which an additional scalar field can be invoked to simplify the cosmology of massive spin-2 theories. I will first talk about the minimal theory of quasidilaton massive gravity, a Lorentz-breaking theory of massive gravity + scalar field, propagating only 3 degrees of freedom. Then, I will describe an example realization of chameleon bigravity, showing how including a chameleon scalar allows to easily reach higher energies without violating the Higuchi bound.

Nordita  | Last modified 13 November 2018 13:29  |  HELP